With that, he tossed a pitch-black piece of ore toward Lu Feng. Lu Feng caught it and took a look, realizing immediately that this ore was by no means a product of their mining area.
The Immortal Crystal ore from their mining area had all been permeated by the aura of Mosong (the Octopus Spirit), whereas this piece of ore was completely devoid of Mosong's aura.
At a single glance, Lu Feng could tell whether the ore was genuine or fake.
Chapter 311